Buy to let property

[perimumma]

DH bought a buy to let about 20 years ago when he was early 20's. He isn't really making anything on it.

He's reluctant to sell as he's never paid any tax on it and thinks he will get a massive bill.

I have no idea how any of this works. Can anyone explain?

When did you sell or give away the property? - Calculate your Capital Gains Tax - GOV.UK

He can work out exactly how much capital gains tax he will need to pay and look at any relief he might be entitled to on the gov,uk website.

yes he might get a substantial tax bill but hopefully this will be offset by the amount the property has grown in value and the profit he makes.